Flexible Metal Hoses
Flexible Metal Hose Assemblies
Custom-configured flexible metal hose assemblies for industrial piping and equipment connections. Specify the required hose type, overall length, operating conditions, materials and End A / End B connections. Mingchao can manufacture project-specific configurations based on the confirmed application requirements.
Also searched as custom metal hose assemblies, corrugated metal hose assemblies, braided metal hose assemblies or industrial flexible hose assemblies.
- Product Type
- Flexible Metal Hose Assembly
- Configuration
- Custom / Project-Specific
- Hose Type
- Corrugated Flexible Metal Hose
- Reinforcement
- Braided Options Available
- Overall Length
- Made to Project Requirements
- End Connections
- End A / End B Configurable
- Typical Systems
- HVAC / Pumps / Equipment / Industrial Piping
- Customization
- Hose / Length / Material / Braid / Connections
CustomizationProject-specific hose, length, material, braid and End A / End B configurations can be manufactured according to confirmed requirements, drawings or replacement samples.
Project Configuration
Mingchao can customize the product configuration based on the technical information, operating conditions and dimensional data you provide. Final configuration can be reviewed and manufactured to the approved project drawing.
Flexible Metal Hose Assemblies Overview
The Mingchao Flexible Metal Hose Assembly range is designed for project-specific flexible connections between piping, mechanical equipment and process systems.
A complete assembly combines the selected flexible metal hose with the required reinforcement, overall length and End A / End B connections.
Rather than treating every installation as one fixed catalog item, the assembly can be configured around the actual pressure, temperature, medium, movement, routing and mating connection requirements.
Mingchao can manufacture project-specific flexible metal hose configurations based on confirmed customer requirements, drawings or replacement assembly information.
Hose, Braid & Assembly Construction
A typical flexible metal hose assembly may combine:
- a corrugated flexible metal hose;
- external braid where required by the selected design;
- connection necks or adapters;
- End A fitting;
- End B fitting;
- welded connection components;
- the required flexible length and overall assembly length.
The corrugated hose provides flexibility. Where braid is used, it reinforces the hose and helps restrain pressure-induced elongation.
The final hose, braid, fittings and welds should be treated as one complete assembly. Depending on the project requirements, different hose sizes, braid configurations, materials and end connections can be reviewed before production.
Assembly Configuration
| Specification | Assembly Configuration |
|---|---|
| Product Type | Flexible Metal Hose Assembly |
| Configuration | Custom / Project-Specific |
| Hose Type | Corrugated Flexible Metal Hose |
| Braid | Available according to selected assembly design |
| Overall Length | Project-Specific |
| End A | Configurable |
| End B | Configurable |
| Materials | Selected according to confirmed service requirements |
| Pressure | Configuration-dependent |
| Temperature | Configuration-dependent |
| Movement | Defined according to installation geometry and hose configuration |
| Testing | According to confirmed project requirements |
| Documentation | According to confirmed project requirements |
Custom End A & End B Connection Options
Flexible metal hose assemblies are often selected according to the exact piping or equipment interfaces on both ends. End A and End B can be specified independently.
Common project configurations may include flanged, grooved, threaded, welded pipe or adapter connections, plus other project-specific fittings subject to technical confirmation.
For each end, provide the nominal size, connection type, mating standard or dimensions, flange drilling / groove / thread information where applicable, and the equipment or piping interface drawing.
Do not assume that End A and End B must be identical. Do not assume compatibility from nominal hose size alone.
Available Assembly Options
| Option | Typical Configuration Approach |
|---|---|
| Hose Size | Selected according to required flow, connection and service |
| Overall Length | Manufactured to confirmed project requirement |
| End A | Flange / Groove / Thread / Other confirmed fitting |
| End B | Flange / Groove / Thread / Other confirmed fitting |
| Braid | Selected according to pressure and assembly requirements |
| Materials | Selected according to medium and temperature |
| Static / Dynamic Service | Must be identified during selection |
| Replacement Assembly | Existing drawing / sample / photo can be used for review |
| Testing | Specify project requirement |
| Documentation | Specify project requirement |
Materials, Pressure & Temperature Selection
Flexible metal hose assembly capability depends on the complete selected configuration rather than one isolated maximum value.
Important factors include hose material and diameter, braid material and configuration, braid layers where applicable, end-fitting material, operating pressure, operating temperature, process medium, overall length, movement or vibration, and static or dynamic service.
Existing Mingchao flexible metal hose products document stainless-steel component options including SS304, SS316 and SS316L. For a custom assembly, the final hose, braid and fitting material combination should be confirmed against the actual medium, pressure and temperature.
Operating pressure and temperature are configuration-dependent. The maximum pressure and maximum temperature from different configurations should never be assumed to apply simultaneously unless confirmed for the selected assembly.
Documented Mingchao Hose Configurations
Mingchao currently has documented flexible metal hose products covering both general industrial stainless-steel hose applications and grooved-end piping connections. These products can help identify the closest starting configuration for a custom hose assembly.
Important: The specifications below belong to the individual documented Mingchao products and should not be interpreted as universal limits for every custom Flexible Metal Hose Assembly.
| Product | Connection | Size Range | Design Pressure | Design Temperature | Construction / Materials | Best Fit | View |
|---|---|---|---|---|---|---|---|
| JR Stainless Steel Flexible Metal Hose | Flanged; other confirmed ends | DN8–DN400 | 0.25–6.4 MPa | -20°C to +400°C | Corrugated metal hose with stainless steel braid; documented SS304 / SS316 / SS316L components | General industrial stainless-steel flexible hose applications | View JR |
| Grooved-End Flexible Metal Hose | Grooved-End | DN32–DN350 | 0.25–2.5 MPa | -20°C to +400°C | Corrugated metal hose with external braid and grooved ends; product-level material grades require confirmation | Flexible connections in compatible grooved piping systems | View Grooved-End Hose |
Applications for HVAC, Pumps & Industrial Piping
HVAC & Building Services
Project-specific flexible connections in HVAC, chilled-water and building-services piping.
Pump Suction / Discharge
Flexible pump connections where the selected assembly and installation geometry are technically suitable.
Mechanical Equipment
Flexible interfaces between equipment and connected piping.
Vibration-Sensitive Piping
Connections where vibration and routing must be reviewed together.
Water & Utility Piping
Custom assemblies for compatible water and utility services.
Steam Service
Assemblies selected for the actual pressure, temperature and material requirements.
Industrial Process Piping
Flexible piping connections subject to medium and service-condition confirmation.
Power & Utility Systems
Project-specific equipment and piping connections.
Oil, Gas & Chemical Service
Only where materials, pressure and temperature conditions are confirmed.
Marine / Replacement Assemblies
Marine, machinery or replacement connections subject to confirmed project requirements.
Application suitability is subject to material, pressure, temperature, movement, routing and service-condition confirmation.
How to Specify a Custom Metal Hose Assembly
Provide the following information for configuration review and quotation:
- Required application.
- Hose type, if already specified.
- Nominal size / hose inside diameter.
- Required overall assembly length.
- Flexible hose length, if separately specified.
- Design pressure.
- Normal working pressure.
- Operating temperature.
- Process medium.
- Required movement / lateral offset / vibration condition.
- Static or dynamic service.
- Installation orientation and available space.
- End A connection and dimensions.
- End B connection and dimensions.
- Required hose / braid / fitting material.
- Braid configuration if specified.
- Quantity and destination country.
- Existing drawing, sample or product photograph for replacement assemblies.
For replacement assemblies, a dimensional drawing, clear photographs or a physical sample can significantly improve connection and overall-length verification.
Testing, Inspection & Project Documentation
Testing and documentation requirements should be identified before production, particularly for industrial, EPC and replacement projects.
Depending on the project and confirmed manufacturing scope, requirements may include dimensional inspection, visual inspection, pressure or leak testing, material documentation, connection verification, welding inspection or related manufacturing records, product identification, project-specific inspection records, and packing or shipment documentation.
The required test method, test pressure, acceptance criteria and documentation package must be confirmed for each order.
Flexible Metal Hose vs. Metal Bellows Expansion Joint
| Selection Point | Flexible Metal Hose Assembly | Metal Bellows Expansion Joint |
|---|---|---|
| Main Role | Flexible piping / equipment connection | Engineered pipeline movement compensation |
| Flexible Element | Corrugated hose | Bellows element |
| Selection Focus | Length, routing, bend radius, pressure, temperature, End A and End B | Movement, pressure, anchors, guides and piping design |
| Direct Axial Compression | Do not use a straight braided hose as a short axial compensator | Can be specifically engineered for axial movement depending on design |
| Typical Configuration | Straight assembly / routed assembly / engineered hose geometry | Axial / lateral / angular expansion-joint design |
A flexible metal hose assembly should not be selected as a short substitute for a bellows expansion joint.
Installation & Routing Considerations
The selected hose geometry, routing and support arrangement must be confirmed as part of the complete assembly design.
Prevent Twisting
Do not twist the assembly.
No Axial Fit-Up
Do not force a straight hose into axial compression or extension.
Flexible Length
Use sufficient flexible length.
Bend Radius
Observe the minimum bend radius of the selected hose.
Protect End Fittings
Avoid sharp bends directly adjacent to fittings.
Service Type
Distinguish static and dynamic service.
Movement Plane
Keep repeated movement within the intended plane where applicable.
End Alignment
Align End A and End B correctly.
Independent Support
Support connected piping and equipment independently.
Avoid External Weight
Do not allow equipment weight to load the hose incorrectly.
Protect Hose and Braid
Protect corrugation and braid against impact and abrasion.
Protect Connections
Protect weld and fitting areas.
Confirm Conditions
Confirm pressure, temperature and medium before installation.
Inspect Before Service
Inspect hose, braid, fittings and weld areas before service.
Real Products, Production & Technical References
The photographs and technical references shown here represent actual Mingchao flexible metal hose products, assembly configurations or manufacturing references.
Documented flanged configuration: JR Stainless Steel Flexible Metal Hose. Documented grooved configuration: Grooved-End Flexible Metal Hose.
Individual photographs may show different end connections, materials or hose constructions and should not be interpreted as one universal specification.
For project production, the final assembly configuration is confirmed against the approved requirements or drawing. Additional selection guidance is available in Technical Information.